Curtain window



R. cALPlN CURTAIN WINDOW Filed A51-11 i4. 192s vrl5 Patented Oct. 4,1927.

UNITED STATES RAYMOND CALPIN, OF EVERETT, MASSACHUSETTS, ASSIGNOR TO S.CAMPBELL llancia PATENT OFFICE.

COMPANY, OF EAST BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHU- ASETTS.

CURTAIN WINDOV.

Application filed April 14,1923. Serial No. 632,108.

This invention pertains to improvements in curtain windows. It is amongthe objects of the invention to provide a curtain window installation ofinexpensive construction, facile of assembly and of pleasing appearance,while at the same time providing a very secure connection between Glass,frame and curtain. Reference is hereby made to applicants co-pendingapplication, Serial No. 632,107, sied April 14 1923.

In the drawings, which show a preferred form of my invention, includinga modification: v

Figure 1 is an elevation of a curtain window assembled with its carryingfabric,

Fig. 2 is a section on the line 2-2 of Figl; p

Fig. 3 is a partial sectiononfthe same line as Fig. 2, showing therelation of the parts at an intermediate stage of the assemblingoperation; f Y

Fig. 4 is a plan view of a portion of one 'of the frame parts;

Fig. 5 is a side elevation of theV frame part shown in'Fig. l;

Fig. 6 is a plan view of the other frame part; and I Y Y.

Fig.l 7 is a sectionthrougli a side of a frame constituting amodification of my invention.

Referring to Figs. 1 through 6, I have shownl a curtain window includinga kglass 8 secured to its carrying fabric, herein' shown as the curtain9 of an automobile', by'frames including a prong-providing frame 10 anda prongreceiving frame 11. The prong-providing frame 10 resembles thatshown 1n my co-pending application Serial No. 632,107 filed herewith,being formed of a single sheet of metal bent back at both sides topresent a double thickness, with rounded inner and outer edges,presenting a relatively extended inner surface to the adjacentcarta-inmaterial, and pressing the latter against the ad] acent surfaceof the glass 8 and against an opposed relatively extendedcurtain-engaging surface of the opposed frame. The prongs project froman edge ofthe material for-ming the prong-providing frame, preferablyfrom what was, prior to bending of tlieframe to shape, an inner edge ofthe blank. The prong is thus considerably' removed from both the innerand outer edges of its france and well adapted to enter aprong-receiving aperture in the prong-re ceiving frame at a distancefrom both edges of the latter frame, thereby to clamp' the curtainmaterial, for a considerable area on either side of the prongs, betweensurfaces* of the opposed frames.

The prong-providing frame (except the modification in Fig. 7) isprovided with plural stiffening ribs formed by twobeadsf intermediate ofand generally parallel to its edges, such beads, however, so spaced asto permit a strong backing for the prongs from the outer portion of theprong-carrying frame, there being no opportunity for the prongs to yieldduring assembly, with resultant looseness of grip on the curtain whichwould promote working loose of the frames, and wear or tearingofthe'curtain material 1 by the prongs which pass through it. Also anopportunity is provided, wherel desired, to permit soldering oftheprongcarrying fiange of the frame to the overlyingfmetal to which saidflange is otherwise connected only at its edge. The provision of the stiening beads on the prong-providing frame'is optional, as the thicknessyof the metal may if desired be relied upon or,'better, thev stiffeningbead or ridge may be provided entirely onthe rprong-receiving frame,where it may serve a double functiomas its inner surface may provide a`prong-turning anvil as hereinafter more fully described.

The glass is preferably'received in an'olfset entirely located in theframe located on the same side of the curtain material as the glass,this'fraine herein shown as the prongreceiving frame 11 presenting aglass-receiving offset fiange 20, a base flange 21 apertured to permit`passage of the yprongs therecilitate starting of the prong-turningopera?L tion without marking the exterior of the prong-concealing flange22'. `Inthe embodiment of my invention'shown in Fi s2 and 3, theprongfturning anvil. may e either. y

isolated struck-up portions, one above 'each of the prong-receivingopenings 24, or they may be a continuous ridge 'extending entirelyaround the frame, `which latter construction is perhaps superior inappearance. In the embodiment of my invention shown in Fig. 7, theprong-turning is effected by the interior of a continuous ridge of. sufficient height to stiden the prong-receiving frame considerably and towarrant, if desired, the omission of any stiifening ridge on theprong-providing frame.

To permit convenient shipping of the frames from the factory where madeto the point of installation, I- may enter the prongs in theprong-receiving openings, any injury from excess pressure where shippingin quantity being avoided, if present, by

f spacing projections 25, usually four in number, distributed about theframes and not fitting any corresponding holes in the prongreceivingframe. These spacing projections, if used, are preferably scored attheir base so that they may be easily broken off by bending laterallyprior to assembly of the curtain installation.

`The prongs, as illustrated, should be deliected toward the glass toprovide a secure vgrip thereon, the pressure ordinarily applied by asuitable press at the place of assembly, the dies engaging beneaththeprongproviding frame and above the prong-receiving frame, andexerting pressure on the frames near the prongs but not on the glassexcept as transmitted through the glass-receiving flange, which has'suiiicient resiliency, coupled with that of the cushioning adhesivetape 30 and confined edge of the curtain material, .to prevent breakageof the glass even when, as occasionally happens, the lat- 'ter is notflat but somewhat warped.

The glass, adhesive tape and frame and curtain surfaces adjacent theretoshould be coated with a suitable adhesive cement prior to assembly. Y

While I have shown and described av preferred embodiment of myinvention, it will be understood that I have done so for purposes ofclarification, not of limitation, and that my invention coniprehendsconstructions of the various types defined by the following claims.

Claims:

1. A curtain window installation comprising, in combination, opposedframes presenting opposed extended surfaces between Y which the curtainfabric may be gripped,

yeo

ing, in combination, opposed frames presenting opposed extended surfacesbetween which the curtain fabric may be gripped,

prongs extending from one of said frames intermediate of one of saidsurfaces, prongreceiving apertures in the other of said framesintermediate the other of said siii'- faces and integral with the framepresenting said prong-receiving apertures and a prong turning andconcealing portion overlying said prong-receiving apertures.

3. A curtain window installationy comprising, in combination, opposedframes ypresenting opposed extended surfaces between which the curtainfabric-may be gripped, prongs extending from one of said framesintermediate of one of said surfaces, prong-receiving apertures in theother of said frames intermediate the other of said surfaces and a prongturning and concealing portion overlying said prong-receiving apertures,said prong turning and concealing portion providing a stilfening rib.

4. A curtain window frameelement presenting a base portion having asubstantial area for engagement with thefcurtain fabric, a prongconcealing and turning portionintegral with said base portion, and anangular glass retaining portion integral with one ofsaid portions. v y

5. A curtain window frame element presenting a' base portion having asubstantial area for engagement with the curtain'fabric, a prongconcealing and turning portion integral with and bent generally parallelto said base portion and contacting therewith, and an angular glassretaining portion integral `with said base portion.

6. A curtain window frame portion presenting in cross sectionan angularglass-q.t surrounding portion, a base portion presenting a substantialarea for'engageinent with the curtain fabric and integral with said baseportion a prong concealing and turning portion bent generally parallelto saidA base portion and havingV its edge adjacent saidglass-surrounding portion.

7. Curtain window elements including two frames presenting cooperatingprongs and prong-receiving apertures, and removable spacing projectionsoperatively interposed between said fraines to oppose, prior to removalof such spacing projections, any

.clenching of said prongs during storage,

shipment or handling while said prongs are engaged in said apertures,said spacing projections integral with the prong-providing frame.

8. Curtain window elements including two frames presentingcooperatingprongs and prong-receiving apertures, and removable spacingprojections operatively vinterposed between said frames to oppose, priorto removal of such spacing projections, any clenching of said prongsduring storage,

shipment or handling While said prongs are engaged in said apertures,said spacing projections readily breakable in their entirety from theircarrying part when subjected to bending strains by the operator prior toassembly of the frames in use.

9. A curtain Window frame comprising a prong-presenting unit and aprong-receiving unit, each presenting surfaces of substantial Width forgripping a curtain therebetween, said prong-receiving-unit comprising incross section, a'lange for overlying a portion of a glass adjacent toits edge, a second flange surrounding the edge of said glass, and areversely bent base flange providing one of said curtain grippingsurfaces, said base flange providing prong-bending, prong-clenching andprong-concealing means.

In testimony whereof, I have signed my name to this specification.

RAYMOND CALPIN.

